From 0abddf82d54c704cf066524235b6414333e8d087 Mon Sep 17 00:00:00 2001 From: Macpaul Lin Date: Mon, 11 Apr 2011 20:45:32 +0000 Subject: cmd_ide: enhance new feature "CONFIG_IDE_AHB" Although most IDE controller is designed to be connected to PCI bridge, there are still some IDE controller support AHB interface for SoC design. The driver implementation of these IDE-AHB controllers differ from other IDE-PCI controller, some additional registers and commands access is required during CMD/DATA I/O. Hence a configuration "CONFIG_IDE_AHB" in cmd_ide.c is required to be defined to support these kinds of SoC controllers. Such as Faraday's FTIDE020 series and Global Unichip's UINF-0301. Signed-off-by: Macpaul Lin --- common/cmd_ide.c | 29 ++++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) (limited to 'common/cmd_ide.c') diff --git a/common/cmd_ide.c b/common/cmd_ide.c index a1f7e57155..e7952ff8d6 100644 --- a/common/cmd_ide.c +++ b/common/cmd_ide.c @@ -517,8 +517,20 @@ __ide_outb(int dev, int port, unsigned char val) { debug ("ide_outb (dev= %d, port= 0x%x, val= 0x%02x) : @ 0x%08lx\n", dev, port, val, (ATA_CURR_BASE(dev)+CONFIG_SYS_ATA_PORT_ADDR(port))); + +#if defined(CONFIG_IDE_AHB) + if (port) { + /* write command */ + ide_write_register(dev, port, val); + } else { + /* write data */ + outb(val, (ATA_CURR_BASE(dev))); + } +#else outb(val, (ATA_CURR_BASE(dev)+CONFIG_SYS_ATA_PORT_ADDR(port))); +#endif } + void ide_outb (int dev, int port, unsigned char val) __attribute__((weak, alias("__ide_outb"))); @@ -526,7 +538,13 @@ unsigned char inline __ide_inb(int dev, int port) { uchar val; + +#if defined(CONFIG_IDE_AHB) + val = ide_read_register(dev, port); +#else val = inb((ATA_CURR_BASE(dev)+CONFIG_SYS_ATA_PORT_ADDR(port))); +#endif + debug ("ide_inb (dev= %d, port= 0x%x) : @ 0x%08lx -> 0x%02x\n", dev, port, (ATA_CURR_BASE(dev)+CONFIG_SYS_ATA_PORT_ADDR(port)), val); return val; @@ -695,6 +713,7 @@ void ide_init (void) ide_dev_desc[i].blksz=0; ide_dev_desc[i].lba=0; ide_dev_desc[i].block_read=ide_read; + ide_dev_desc[i].block_write = ide_write; if (!ide_bus_ok[IDE_BUS(i)]) continue; ide_led (led, 1); /* LED on */ @@ -902,7 +921,11 @@ output_data(int dev, ulong *sect_buf, int words) static void output_data(int dev, ulong *sect_buf, int words) { - outsw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, words<<1); +#if defined(CONFIG_IDE_AHB) + ide_write_data(dev, sect_buf, words); +#else + outsw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, words << 1); +#endif } #endif /* CONFIG_IDE_SWAP_IO */ @@ -960,7 +983,11 @@ input_data(int dev, ulong *sect_buf, int words) static void input_data(int dev, ulong *sect_buf, int words) { +#if defined(CONFIG_IDE_AHB) + ide_read_data(dev, sect_buf, words); +#else insw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, words << 1); +#endif } #endif /* CONFIG_IDE_SWAP_IO */ -- cgit v1.2.1